Churn-motor.



No. 663,805.' Patgmed nee. n, lawn.

W. H. CRAWFORD. CHURN MQTQR.

(Application mea 29, 1900.1

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amant trios- WILLIAM H. CRAWFORD, OF WEATHERFORD, TEXAS. Y

cHURN-ivloroa.

SPECIFICATION forming part of Letters Patent No. 663,805, dated December 11, 1900.

Application filed March 29, 1900. Serial No. 10,637. \No model To @ZZ whom t may concern.-

Beitknown thatLWILLIAM H. CRAWFORD, a citizen of the United States, residing at VVeatheriord, in the county of Parker and State of Texas, haveinvented a new and Iniproved Churn-Motor, of which the following is a specification.

My invention relates to churns, and more particularly to churns operated by a cranklever and belt and pulleys; and the object is to construct a churn which is simple in construction, which is easily operated, and which is light, strong, and durable. Other objects and advantages will be fully understood from the following description and claims.

Reference is had to the accompanying drawings, which form a part of this application.

Figure 1 is a perspective view of the invention, the churn being shown in abroken sectional view. Fig. 2 is a cross-section of the crank-lever. Fig. 3 is a side elevation of the invention on a smaller scale than Fig. 1 and showing the opposite side from that shown in Fig. 1. y

The frame for the churn consists of a pla-tform 1, supported on cross-pieces 2 and 3, two uprights 4 and 5, the central girder 6, supported in the uprights 4 and 5, theA brace 7, and suitable braces for the uprights and girder. The brace 8 supports the frame at one end and the brace 9 supportsthe frame on one side. The braces 10 aid in binding the uprights 4 and 5 to the girder 6 and hold these parts rigidly together. The ends 11 and 12 of the girder 6 are reduced and projected through the uprights 4 and 5. The milkholder 13 is supported on platform 1. A driving-shaft 14 is mounted on the girder 6. The uprights4 and 5 are set in the platform 1 and the upright4is nailed or otherwise attached to the cross-piece 2. The brackets 15 are secured tothe girder 6 and are apertured for the passage of the driving-shaft 14. The dasher 16 is secured to the driving-shaft 14 by means of a key 17. This key serves as a fan to drive away knats and ies and also for cooling the temperature. VThe dasher consists of a central body-piece 16 and a plurality of small bars 18, secured to the body 16 by means of rods 19, which pass through the body 16 and through the bars 18, the bars and rods constituting Wings for the body 16.

A drivingpulley 20 is mounted on the vertical drivingshaft 14. The belt 2l passes through this pulley, then around the pulley a few times,

then through the uprights 4 and-5 and un' der the pulley 22 and 23, and then up to the tension -bracket 24. pivoally mounted on the girder 6 by means of a bracket 26 and pivot-bolt 27. The tension-bracket 24 is secu red to the crank-lever 25. The tension-frog 28 is adjustably mount- The crank-lever is y ed on the crank-lever by means of a bolt 29 by means of the bolt 29 and nut 30. The brace 7 serves as a guide for the lever 25. The pulley 22 is supported in bearing 34, Which is attached to the end 11 of the girder 6, and pulley23 is supported in a bearing 35, which is mounted on a block 36. Block 36 is mounted on the end 12 of the girder 6. The bearing is mounted on block 36 in order to raise the pulley 23 high enough to let the ,belt 21 run on a `level from the pulley 23 to the driving-pulley 20. The block is intended to raise the pulley 23 as much higher than the pulley 22 as that portion of the belt toward the pulley 23 is higher than the portion of the belt toward the pulley 22.

In operation that portion of the belt toward pulley 23 winds on the pulley 20 above the point at which the belt passes through pulley 20 and the portion of the belt 21 toward the pulley 22 winds on the pulley 2O below the point at which the belt passes through pulley 20. The belt may be secured in the pulley by a pin or in any other practical manner, so that the belt cannot slip back and. forth through the pulley during operation. Holes A may be made in the girder 6 for making the girder lighter and for ornament.

IIt will be seen that I have invented a motor which is simple in construction and simple in operation. All that is necessary to operate the motor after the churn has been adjusted is to move the lever 25 back and forth, the operator standing at one end of the frame. rIlhe dasher is put in the churn. The churn is then adjusted to its proper place and the dasher secured to the shaft 14 by the key l1'7, the shaft 14 entering the dasher, so that the key 17 passes through the shaft and the dasherhandle. A churn of any suitable shape may be used with myimproved motor.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is Y l. A churn-motor consisting of a suitable frame, said frame having a girder on which the motor is mounted, a driving-shaft provided With suitable bearings mounted on said girder, a driving-pulley mounted on said shaft, auxiliary pulleys provided With suitable bearings mounted on said girder, a crank-lever pivotally mounted on said girder, a driving-belt passing through said drivingpulley and rigidly secured therein and passing under said auxiliary pulleys and then to said lever, and means for tightening said belt consisting of a tension-bracket through Which said belt passes secured to said lever, and a tension-frog adjustably mounted on said lever for regulating the tension of said belt, Said frog having a tongue for securing said belt in said frog projecting in a slot in said lever.

2. A ch urn-motor provided with a suitable frame having a girder for supporting the driving mechanism, a shaft provided with bearings mounted on said girder for operating a churn-dasher, a driving-pulley mounted y on said shaft, a .crank-lever mounted in said frame, pulleys mounted on said girder adaptr ed to aid in regulating the tension of the belt,

the driving-belt attached to said driving-pulley, and means for attaching said belt to said lever and regulating the tension thereof 'consisting of a tension-bracket secured to said ylever and a tension-frog provided with means for attaching the same to said lever at various points of adjustment.

3. In a churn-motor provided with a suitable frame and a shaft for operating a churndasher mounted in said frame; means for driving said shaft consisting of a pulley mounted on said shaft, a belt attached to said pulley, a erank1ever and pulleys coacting With said lever for driving said belt, and means for regulating the tension of said belt consisting of a tension-bracket mounted on said lever and a tension-frog to Which said belt is attached provided with means for securing the same lo said lever at various points of adjustment.

4. In a churn-motor provided with a shaft for operating a churn-dasher and a belt and suitable pulleys for driving' said shaft; a lever for operating said belt and means for regulating the tension of said belt consisting of a tension-bracket mounted on said lever and a tension-frog provided With means for attaching the same at various points of adjustment on said lever.

In testimony whereof I set my hand, in the presence of two Witnesses, this 24th day of March, 1900.

v WILLIAM H. CRAWFORD. Witnesses:

HARRY B. KIRKPATRICK, EVAN G. RICHARDS. 

